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@NogDogJun 19.2006 — #For PHP4 and PHP5, a function can be defined anywhere (the exception being conditional function definitions, which I doubt you need to worry about here).
Anyway, what I've found to be useful to do is for common HTML output that I define in an include file, I put it into a function definition. Then I include that file in the main file, and call the function where needed:
@NogDogJun 20.2006 — #Either define them as "global" in your function, or use the $GLOBALS array (see Example 12-3 at http://www.php.net/manual/en/language.variables.scope.php ). Howver, using global variables has a number of potential pitfalls, so usually it is better to make them into function parameters if at all possible.
ordering includes, functions, and headers
i’m just about to pull my hair out over this one. here’s the basic flow of my login.php page right now
[code]
require(header.php)//contains the login function and the beginning of the html
if(login(user, pass)){
header(“Location: somewhere.php”);
}
require(footer.php)//contains the end of the html
problem, obviously, is that i can’t go somewhere else after html has started, right? so i would put all the php stuff above the header include, but then i wouldn’t be able to get at the login function. though, strangely, php does seem to be able to call functions that are extablished later in the script sometimes, but is this a safe thing to do? will it work in most versions of php?
is there another way to change the page without the visitor having to click anything, but that can be done from the middle of the page? last resort option is, of course, to split up the header into 2 files, but i would rather not do that. can i depend on the logout function working if i call it before it’s defined?
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@NogDogJun 19.2006 — #For PHP4 and PHP5, a function can be defined anywhere (the exception being conditional function definitions, which I doubt you need to worry about here).Anyway, what I've found to be useful to do is for common HTML output that I define in an include file, I put it into a function definition. Then I include that file in the main file, and call the function where needed:
[code=php]
<?php
require_once "include_file.php"; // includes top() function definition
if(some_condition_is_true)
{
header("Location: somewhere.else");
exit;
}
top(); // outputs common top-of-page HTML
// etc....
?>
[/code]0
@NogDogJun 20.2006 — #Either define them as "global" in your function, or use the $GLOBALS array (see Example 12-3 at